AI Detector by SpellCheck.me

AI Detector by SpellCheck.me is a specialized NLP utility designed to identify machine-generated text through a combination of perplexity analysis and burstiness metrics. Operating on an ensemble model architecture, the tool evaluates text against the known statistical distributions of leading Large Language Models including GPT-4o, Claude 3.5, and Gemini 1.5. As of 2026, the tool has evolved to address 'humanization' techniques used by AI bypassers, focusing on syntactic variability and semantic coherence that AI often lacks. The technical backbone leverages transformer-based classifiers that achieve high accuracy by analyzing the 'predictability' of the next-word sequence. Its market position is defined by its accessibility and low barrier to entry for educators, SEO professionals, and editors who require rapid verification without the heavy overhead of enterprise security suites. The platform provides a granular probability map, highlighting specific sentences that exhibit high probability of machine origin, allowing for targeted manual review rather than binary 'pass/fail' outcomes. This nuanced approach makes it a critical component in the 2026 content verification stack, where hybrid human-AI collaboration is the industry standard.